34 theory synonyms include hypothesis, thesis, conjecture, supposition, speculation, postulation, postulate, proposition, premise, and surmise. Theory is a noun, and its antonyms are fact and practice. Here are some additional synonyms for "theory" with example sentences.
34 other ways to say theory.
Can you prove your theory with evidence?
Despite its abstrusity, the theory gained respect in academic circles.
His theory explained the phenomenon clearly.
In theory, this plan should succeed.
Many respected scientists supported the theory.
She challenged the existing theory effectively.
This theory has practical application in medicine.